{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=live+attenuated+and+inactivated+influenza+vaccines&page=2",
    "query": {
      "intervention": "live attenuated and inactivated influenza vaccines",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 32,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=live+attenuated+and+inactivated+influenza+vaccines&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=live+attenuated+and+inactivated+influenza+vaccines&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T02:05:50.477Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT00231907",
      "title": "A Phase I Safety and Immunogenicity Study of Mix and Match of Licensed Flu Vaccine and Flumist",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "FluMist",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "35 Months",
        "sex": "ALL",
        "summary": "12 Months to 35 Months"
      },
      "enrollment_count": 56,
      "start_date": "2005-09",
      "completion_date": "2007-03",
      "has_results": false,
      "last_update_posted_date": "2010-08-27",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 3,
      "location_summary": "St Louis, Missouri • Cincinnati, Ohio • Nashville, Tennessee",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00231907"
    },
    {
      "nct_id": "NCT02133781",
      "title": "B-cell Immunity to Influenza (SLVP017)- Year 1, 2009",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone® 2009-2010 Formula",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FluMist® 2009-2010 Formula",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "8 Years to 100 Years"
      },
      "enrollment_count": 51,
      "start_date": "2009-07",
      "completion_date": "2009-12",
      "has_results": true,
      "last_update_posted_date": "2018-06-06",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02133781"
    },
    {
      "nct_id": "NCT02559505",
      "title": "Influenza Immunity in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Seasonal IIV 0.25 mL dose",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Natural influenza infection",
          "type": "OTHER"
        },
        {
          "name": "Seasonal IIV 0.5 mL dose",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "3 Months to 8 Years"
      },
      "enrollment_count": 134,
      "start_date": "2015-10",
      "completion_date": "2020-07-03",
      "has_results": true,
      "last_update_posted_date": "2021-09-02",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02559505"
    },
    {
      "nct_id": "NCT02274545",
      "title": "Evaluating the Safety and Immunogenicity of a H7N9 Vaccine for the Prevention of Influenza H7N9 Disease in Adults 50 to 70 Years Old",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza A Virus, H7N9 Subtype"
      ],
      "interventions": [
        {
          "name": "H7N9 Anhui 2013/AA ca",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Inactivated subvirion H7N9 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "50 Years to 70 Years"
      },
      "enrollment_count": 24,
      "start_date": "2014-10",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-04-19",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02274545"
    },
    {
      "nct_id": "NCT03453801",
      "title": "The Role of CD4+ Memory Phenotype, Memory, and Effector T Cells in Vaccination and Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Fluzone®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FluMist®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "6 Months to 10 Years"
      },
      "enrollment_count": 80,
      "start_date": "2014-09-30",
      "completion_date": "2019-01-14",
      "has_results": false,
      "last_update_posted_date": "2020-02-13",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03453801"
    },
    {
      "nct_id": "NCT03088904",
      "title": "Genetic and Environmental Factors in the Response to Influenza Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "FluMist® Quadrivalent",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone® Quadrivalent vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "12 Years to 49 Years"
      },
      "enrollment_count": 109,
      "start_date": "2014-10-03",
      "completion_date": "2018-12-12",
      "has_results": false,
      "last_update_posted_date": "2020-02-13",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03088904"
    },
    {
      "nct_id": "NCT03816878",
      "title": "Immunogenicity and Safety Study of Inactivated Subunit H5N1 Influenza Vaccine in Prior Recipients of Live Attenuated H2N2, H6N1 and H9N2 Influenza Vaccines and in H5N1 and Live Attenuated Vaccine Naïve Individuals",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "H5N1 pISV",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 32,
      "start_date": "2019-01-08",
      "completion_date": "2020-03-17",
      "has_results": true,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03816878"
    },
    {
      "nct_id": "NCT03553940",
      "title": "H3N2 M2SR in Pediatric Population",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Influenza Immunisation"
      ],
      "interventions": [
        {
          "name": "Influenza Virus Monovalent A/H3N2/Bris 10 M2SR Live Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Quadrivalent MDCK Inactivated Influenza Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "9 Years to 17 Years"
      },
      "enrollment_count": 43,
      "start_date": "2018-08-15",
      "completion_date": "2020-08-27",
      "has_results": true,
      "last_update_posted_date": "2021-10-21",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03553940"
    },
    {
      "nct_id": "NCT03300050",
      "title": "Safety and Immunogenicity of a Live-attenuated Universal Flu Vaccine Followed by an Inactivated Universal Flu Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Vaccine"
      ],
      "interventions": [
        {
          "name": "cH8/1N1 LAIV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "AS03-adjuvanted cH5/1N1 IIV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cH5/1N1 IIV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "AS03-adjuvanted cH8/1N1 IIV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Normal saline",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Phosphate buffered saline (PBS)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "PATH",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 65,
      "start_date": "2017-10-10",
      "completion_date": "2019-08-09",
      "has_results": true,
      "last_update_posted_date": "2021-02-21",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina • Cincinnati, Ohio",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03300050"
    },
    {
      "nct_id": "NCT01181323",
      "title": "Post-Partum Immunization With Live Attenuated Influenza Vaccine (LAIV) or Trivalent Influenza Vaccine (TIV) in Post-Partum Breast Feeding Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Cold-adapted live attenuated influenza virus vaccine, trivalent",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Trivalent inactivated influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 49 Years · Female only"
      },
      "enrollment_count": 240,
      "start_date": "2011-09",
      "completion_date": "2013-05",
      "has_results": true,
      "last_update_posted_date": "2015-01-28",
      "last_synced_at": "2026-10-10T02:05:50.477Z",
      "location_count": 6,
      "location_summary": "Washington D.C., District of Columbia • Atlanta, Georgia • St Louis, Missouri + 3 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01181323"
    }
  ]
}